I had to go back and look at the damage photo, rather dramatic. They must have hit something hard. The cracked ng I was referring to is the very minor cracking at stress points. As for the hull breach, that is about as bad as it can get. As Shawn stated, grind it down and start layering the glass, getting wider at each pass. Your stringers may not be symmetrical based on your buildup, but that's OK. I see your crisis point more clearly now, power through, and get the hull done. Once the stringers/floor are done, I would think your over the hump. Best wishes, Michael.
